The rally comes in the wake of Mayor Bill de Blasio canceling the co-location of some charter schools in the city. Parents are worried that future charter schools will be in jeopardy if the state does not step in.

In a statement, the mayor's spokeswoman said, "We took the best possible path forward, rejecting those proposals that did not meet our values and [working] with school communities on those proposals that could be implemented responsibly."

However, the city says 14 out of 17 charter proposals have been approved to open next school year.